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Books > Science & Mathematics > Physics > Nuclear structure physics
The study of the nucleon-nucleon interaction has a long history, going back to 1932 (just after the discovery of the neutron by James Chadwick). The force is responsible for binding protons and neutrons into atomic nuclei but, unlike the cases of Coulomb or Newtonian gravitational laws, the form of the fundamental NN strong interaction and its constants are a priori unknown. The subject is nevertheless important because the energy associated with the binding of protons and neutrons to form atomic nuclei is the energy used in nuclear power. The authors of the present volume deliver accounts of current research on various aspects of the forces between two or more nucleons and how they relate to experiments in nuclear physics. General overviews, illustrated by appropriate examples, are given both the theoretical and experimental knowledge of nuclear physics that are prerequisites for the understanding of the strong interaction. Two- and three-nucleon forces are among the topics that are addressed and discussed including, for example, how nuclear forces emerge from low-energy QCD via chiral effective field theory. A comprehensive overview is presented of realistic free nucleon-nucleon interactions and also two-nucleon dynamics in a nuclear medium.
Published to widespread acclaim, in Marie Curie and Her Daughters, science writer Shelley Emling shows that far from a shy introvert toiling away in her laboratory, the famed scientist and two-time Nobel prize winner was nothing short of an iconoclast. Emling draws on personal letters released by Curie's only granddaughter to show how Marie influenced her daughters yet let them blaze their own paths: Irene followed her mother's footsteps into science and was instrumental in the discovery of nuclear fission; Eve traveled the world as a foreign correspondent and then moved on to humanitarian missions. Emling also shows how Curie, following World War I, turned to America for help. Few people know about Curie's close friendship with American journalist Missy Meloney, who arranged speaking tours across the country for Marie, Eve, and Irene. Months on the road, charming audiences both large and small, endeared the Curies to American women and established a lifelong relationship with the United States that formed one of the strongest connections of Marie's life. Factually rich, personal, and original, this is an engrossing story about the most famous woman in science that rips the cover off the myth and reveals the real person, friend, and mother behind it.
A framework is adopted to encompass valid theories and data of the real world. The whole process of filling the data is described as an example model which takes three Chapters and one Appendix. Then are applied standard Numeric Computational Engineering modeling techniques to compute strings, stream of strings, strings of radiation, strings of four types of forces, strings of sub particles, strings of particles, strings of all elements of the Periodic Table, to end up with a proposed structure of the atomic nucleus from the bottom of the Planck Scale up to the macro scale and its significance to Cosmology. There was no found prior intent to present physical characteristic of strings and was assumed that it would be of value to continue modeling what best is known of the structure of matter. This process and its results are worth to analyze, not only because provides non-symbolic solution to problems but the emergence of new equations and formulas will be over time of generalized use. Physicists are aware of the limitations of symbolic string and super string theories, then modeling as engineers do could be of great importance, even if it is a step to perfection. The attraction of numerical computations resides in its simplicity and finality to prove truth.
In this report of the proceedings of the Fifth Symposium prominent world physicists give an account of the status of the understanding of nuclear structure in the mass region from A=20 to A=60. Ten invited papers cover various aspects of nuclear structure from both the theoretical and the experimental points of view. Additionally, four short papers presenting formal comments are included, along with the edited discussions following the readings of the papers. Two topics are treated in particular: the long-awaited application of polarized beams to the study of nuclear structure is reviewed, with results from Stanford University; and a technique is described, that makes it possible for the first time to observe directly the decay of nuclear states.
The Lecture series on Intermediate Structure in Nuclear Reactions was held in June 1966 at the University of Kentucky. Four lecturers had been invited to present series of three lectures each. Four lecturers had been invited to present series of three lectures each. Unfortunately, Dr. James E. Young was unable to attend the series. He did, however, submit a manuscript and we are fortunate to be able to have his approach represented in this volume. The three lecturers who did attend, Drs. R. H. Lemmer, L. Rodberg, and A. Lande, gave one lecture on each of the three days. The sessions were distributed through the day to allow ample time for discussion. The fact that the conference was small helped to stimulate exchanges between both lecturers and auditors. Some of the discussion sessions were nearly as long as the lectures which they followed.
RADIOACTIVE CLOUDS OF DEATH OVER UTAH From 1950 to the 1958 moratorium on atmospheric testing, the Atomic Energy Commission detonated over 100 atomic bombs at the Nevada Test Site. The inhabitants of St. George, Utah--the so-called downwinders--were repeatedly in the fly zone of these toxic, windblown clouds--so much so that St. George became known nationwide as Fallout City, USA. In the fall of 1979, Stewart Udall, along with a team of lawyers, came to St. George to announce plans for a class-action lawsuit against the United States because the local people were struggling with tragedies inflicted by a cancer epidemic foisted on them by the Atomic Energy Commission. After interviewing 125 people during a four-day period, the Washington lawyer said that cancer rates in the area were three or four times greater than normal. Many people in southwestern Utah believe that thousands of citizens throughout the West are still dying from radiation-exposure inflicted on them by fallout from the Nevada Test Site during the 1950s. The author has spent decades investigating the Test Site issues. He was living in St. George, Utah during the atmospheric testing period in the 1950s. He knows the people. He has read every local paper from the period, counted the tombstones, tracked the anecdotes to ground and studied the dozens of scientific studies on the impact of fallout on the health of the local people. This book is the result of that investigation. The author, Dr. Daniel W. Miles, Professor Emeritus, Dixie State College, received his Ph.D. from the University of Utah in 1967. He taught upper division physics including radiation physics at Westminster College from 1968 to 1985 and continued his teaching career at Dixie State College. He is the author or coauthor of fortytwo publications in peer reviewed scientific journals.
Dr. Elsersawi, a pioneer in the filed of electricity and its effect in living things, challenges the traditional mechanistic in our thinking about the living inner process of magnetism. He found clues to the interaction between electromagnetic field and the human body. Like the gravity of the earth and the quantum in the universe, the magnet has different effect on different regions of the earth and the universe. The strength and location of natural magnetic fields on the earth can influence our minds, alter our character, and noticeably affect our health. The text explains the effect of magnetic fields on humans at different altitudes on the earth. For example, the intensity of magnetic fields at the two poles is greater than at the equator. This reference explores the sources, characteristics, health hazards and benefits of electromagnetic fields (EM), of low-frequency fields and of radio frequency radiations. Pulsed Electro Magnetic Field Therapy (PEMF) is also expressed in pain relief, osteoporosis treatment, fibromyalgia treatment, fracture healing, rheumatic pain, and stress reduction. More over, electricity and electromagnetic fields do affect the spiritual quality of the human. Electricity can vibrate cells, nerves, bones, organs, and change the chemical reaction and metabolism. Disharmonious or unbalanced vibrations show themselves in many ways including discomfort, disease, illness, fatigue, and a variety of different symptoms. Higher vibrations mean healthy body, and low vibrations mean an ailing body. Interestingly, particular electromagnetic waves can cause degenerative disorder of the central nervous system (the brain), which leads to Parkinson's and Huntington's diseases, and impairments both in sequence learning, and in the initiation and termination of voluntary movements. The book contains materials describing different waves of EM of alpha, beta and Gamma to explain their interaction with biological systems.
In Corking the Nuclear Genie, Edward Esko and Alex Jack present a fresh approach to solving the problem of nuclear waste. A new and breakthrough paradigm of physics and ecology for the 21st century.
Neutrons are currently used across a vast extent of science. Neutron induced reaction cross-section is indispensable quantity of nuclear data, which is imperative in the applications of nuclear science and technologies. Precise resonance cross-sections are desired for the safety investigation, assessment of the neutron flux density, reaction rate, etc to drive the nuclear technologies such as nuclear power plant. Fission reaction cross-section is the key parameter for the feasibility studies and for designing next generation reactor. This book presents concrete concepts of neutron, neutron production, neutron induced reaction cross-sections, resonances and interrelated matters. Careful and detailed theoretical and contemporary experimental approaches of this text provide clear, correct, and up-to-date information in the field of neutron physics. With comprehensible discussion and numerous experimental results, this book adequately and widely covers all the major categories of neutron cross-sections.
On July 4, 2012, the Higgs boson, dubbed as the "God particle," which the physicists had been searching for more than 40 years now, was announced to have been discovered by the Large Hadron Collider (LHC), the world' largest particle accelerator operated by the European Organization for Nuclear Research (CERN). Since the Standard Model did not include the explanation of how the particles got their mass, the Higgs mechanism called the Higgs field with a mediating particle of the Higgs boson was invented as the particle that provides the answer to the source of mass of the other particles. On March 14, 2012, physicists at CERN finally confirmed it, paving the way for the possible Nobel Prize nominations for those who conceptualized it and those who worked to discover it. So far amidst the excitement, what the physicists thought that the discovery would bring forth in the advancement in physics was nowhere to be found. With the author's publication of this book, the author is refuting the existence of the "God particle"-the Higgs boson. But more than that, this book is not even primarily written to refute the Higgs boson. Rather, this book presents new theories that will bring forth new advancements in physics, such as the true understanding of charge (Charge theory), New Model of an Atom (replaces the current model of an atom), source of mass of the particles (Mass theory), theory on the structure of the atom of the elements, Atom Law that will replace the Pauli Exclusion Principle, theory on the structure of quarks inside the proton and neutron (Quark theory), and the Theory of Everything that will revise the Standard Model and provide the understanding of the fundamental forces. (This book, together with the written but unpublished book on theory on light and the future to be written book on the theory on gravity will complete the Theory of Everything.) This book also challenges another contender for the Theory of Everything, the String Theory by showing (through Occam's razor) that we don't need a whimsical theory to explain our practical observable universe. To show the extent of change that this book brings, this book challenges the works by physicists that were even award the Nobel Prize. This book challenges the Bohr's and Schrodinger's Model of an Atom, nuclear shell model of an atom, Pauli Exclusion Principle (including the Aufbau Principle and the Hund's rule). Furthermore, as a Theory of Everything, this book also challenges quantum chromodynamics (QCD) and the Electroweak theory. For the physicists who are looking for the New Physics, this is the Real New Physics that will cause nothing short of a paradigm shift.
In April of 2012 the Plutonium Sustainment program at LANL completed or addressed the following high-level activities: 1) Construction activities on the Low Voltage Electron Beam (LVEB) Welder and Analytical Chemistry gloveboxes have started, successfully closing out MRT L2 Milestone 4195; 2) Completed installation of the Surface Preparation unit in PF4. The unit will be functionally tested in May; 3) Completed casting of the first two near net shape W87 hemishells; 4) Delivered Revision 3 of the Plutonium Sustainment and Manufacturing Study; 5) Completed machining and inspecting the first set of Pollux parts on Precitech 1; 6) Attended the Pu Sustainment Second Quarter Mid-Year Review and the Pit Production Integrated Project Team meeting in Livermore, providing technical updates across the Plutonium Sustainment portfolio; 7) Analyzed the program impact of the LANL Voluntary Separation Program. The analysis determined an impact of 24.6 FTEs and a budget impact of approximately $3.2 Million Dollars of pull back; 8) The Power Supply Assembly Area project received a LANL Pollution Prevention "Gold" award in the category of Cradle-to-Cradle - Cleanouts. A gold award is presented to the number one project in its pollution prevention category. There are currently no major issues associated with achieving MRT L2 Milestones 4195-4198 or the relevant PBIs associated with Plutonium Sustainment. There are no budget issues associated with FY12 final budget guidance. Table 1 identifies all Baseline Change Requests (BCRs) that were initiated, in process, or completed during the month. The earned value metrics overall for LANL are within acceptable thresholds, so no high-level recovery plan is required.
Calculations have been done to develop estimates of the fluence rate of unscattered x and gamma rays emerging from two model spheres of special nuclear material: one of uranium enriched to 93.5% by weight of U-235; one of plutonium enriched to 6.0% by weight of Pu-240.
Master's Thesis from the year 2011 in the subject Physics - Quantum Physics, grade: -, Shahjalal University of Science and Technology (Department of Physics), course: Nanostructure Physics, language: English, abstract: This book contains a comprehensive account of application of WKB method to pure Physics of nanostructures containing single or symmetric double barrier V(x) in their band model in presence of longitudinal magnetic field applied along x direction. It concentrates on effects on transmission coefficient of single and symmetric double barriers by three dimensional electron gas (3DEG). Analytical expressions for longitudinal magnetic field dependent transmission coefficient of single and symmetric double barrier of general shape are obtained first. These general expressions are then used to obtain analytical expressions of longitudinal magnetic field dependent transmission coefficient of single and symmetric double barriers of many different shapes we encounter in studying nanostructure Physics. This is followed by thorough numerical investigation to bring out effects of longitudinal magnetic field on transmission coefficient of all these barriers. Comparisons with standard results where available showed excellent agreements. Results of numerical investigation have been explained completely. The book makes well documented, with thorough calculation and discussion, pure Physics of semiconductor nanostructures.
Iodine induced stress corrosion cracking (I-SCC) in nuclear fuel rod sheathing is problematic for all nuclear reactors. The new Advanced CANDU Reactor (ACR) is discussed as a reactor design requiring related mitigation measures owing to a higher burn up and its unique refuelling scheme. A consequential release of iodine by the fuel pellets leads to stress corrosion induced failures and in extreme conditions can result in the release of radioactive contaminates into the atmosphere. This phenomenon is best exemplified by the disaster at the Fukushima Daiichi Nuclear Plant in Japan, March 2011, where melted fuel rods burnt holes in the containment vessels causing the release of radioactive iodine over land and the Pacific Ocean. This book develops a mechanistic kinetic model of the chemistry and thermodynamics in the fuel-to-sheath gap. The study also proposes remedies for I-SCC and suggests possible experimentation. The research in this book has been referenced in journal articles and conference proceedings. This book will be particularly useful as a reference source for professionals in the nuclear industry and others studying thermodynamics and kinetics.
Master's Thesis from the year 2013 in the subject Physics - Quantum Physics, grade: -, Shahjalal University of Science and Technology (Department of Physics), course: Nanostructure Physics, language: English, abstract: We have numerically investigated parametric variations of transmission peaks of symmetric rectangular double barrier in non-tunneling regime. We have compared the variations with those for tunneling regime. One of the three variations in non-tunneling regime is completely different from that for tunneling regime warranting rapid dissemination. The book contains background on Quantum Mechanics, Microelectronics and Nanostructure Physics to enable readers assimilate the book completely.
8 dabei so klein wie nur moeglich gehalten. Durch Gegenuberstellung mit den jeweiligen klassischen Vorstellungen wird der spezifisch quantenmechanische, unanschauliche Charakter der quanten- mechanischen Naturbeschreibung hervorgehoben, der gerade in den Eigenschaften des Photons so deutlich zum Ausdruck kommt. Unter diesem Aspekt, so scheint mir, koennte das Buchlein auch helfen, das Verstandnis der Prinzipien der' Quantenmechanik zu vertiefen. Ich setze beim Leser nur Kenntnis der klassischen Elektrodyna- mik und eine gewisse Vertrautheit mit den Grundzugen der Quan- tentheorie voraus, wie sie im ersten Teil einer ublichen Quanten- mechanikvorlesung vermittelt wird. Interessierte Leser, die mir gern die eine oder die andere Frage stellen moechten oder sich zu kritischen Bemerkungen herausge- fordert fuhlen, moechte ich ausdrucklich dazu ermuntern, mit mir in einen Gedankenaustausch zu treten. Zum Schluss bedanke ich mich sehr herzlich bei meinen Kollegen Dr. TH. RICHTER und Dr. H. STEUDEL fur viele klarende Diskus- sionen und zahlreiche nutzliche Hinweise. Mein besonderer Dank gilt Herrn Prof. Dr. G. WEBER, Jena, fur eine sehr sorgfaltige Durchsicht des Manuskripts.
2013 Reprint of 1958 Edition. Exact facsimile of the original edition, not reproduced with Optical Recognition Software. In 1947, Bethe Edited the Los Alamos Report "Blast Wave" Rept. LA-2000], one of his most cited works among shock physicists, which describes how a nuclear weapon blast wave develops over time and distant. This report also contains contributions by John von Neumann, John Magee, Klaus Fuchs and other prominent scientists. Reprints the expanded edition of 1958 with all supplements. Very rare in the original edition.
A landmark in the development of nuclear astrophysics, this work addresses interrelated questions - What are stars? How does the sun shine? - that have puzzled observers from time immemorial. 1957 edition.
This book proposes a long-term space program for solar system exploration and travel to the stars in an aggressive, cost-effective way. It develops a new multi-stage space gun to shoot large payloads cheaply into space up to 150+ kilometers. It proposes new types of nuclear rockets for cost-effective exploration in the solar system, and eventually for use on starships - "short range" nuclear rockets for the Solar System, and "long shelf life" nuclear rockets for starships. Also, it describes long shelf life nuclear reactors of new design that have hitherto not been developed. Most importantly, the book develops detailed, faster-than-light starship designs (qualitatively in the text - no math, and mathematically in appendices). The key to faster-than-light starships is a faster-than light ion thrust generated by quark-gluon plasmas. This book describes how quark-gluon plasmas can be created in high energy ion collisions and how they might be used for starship propulsion. Several possible starship designs are discussed in detail as well as a mechanism for artificial gravity for disc shaped and cigar shaped starships. |
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